Tuning microwave losses in superconducting resonators
A Gurevich - Superconductor Science and Technology, 2023 - iopscience.iop.org
The performance of superconducting resonators, particularly cavities for particle
accelerators and micro cavities and thin film resonators for quantum computations and …
accelerators and micro cavities and thin film resonators for quantum computations and …
Systematic improvements in transmon qubit coherence enabled by niobium surface encapsulation
We present a transmon qubit fabrication technique that yields systematic improvements in T
1 relaxation times. We encapsulate the surface of niobium and prevent the formation of its …
1 relaxation times. We encapsulate the surface of niobium and prevent the formation of its …
Topical review of quantum materials and heterostructures studied by polarized neutron reflectometry
A review of the applications of polarized neutron reflectometry (PNR) for the investigation of
quantum materials is provided. Recent studies of superconductors, strongly correlated …
quantum materials is provided. Recent studies of superconductors, strongly correlated …
Probing Oxidation-Driven Amorphized Surfaces in a Ta (110) Film for Superconducting Qubit
Recent advances in superconducting qubit technology have led to significant progress in
quantum computing, but the challenge of achieving a long coherence time remains. Despite …
quantum computing, but the challenge of achieving a long coherence time remains. Despite …
Salt‐Assisted Vapor–Liquid–Solid Growth of 1D van der Waals Materials
The method of salt‐assisted vapor–liquid–solid (VLS) growth is introduced to synthesize 1D
nanostructures of trichalcogenide van der Waals (vdW) materials, exemplified by niobium …
nanostructures of trichalcogenide van der Waals (vdW) materials, exemplified by niobium …
Scanning tunneling microscopy and spectroscopy characterization of Nb films for quantum applications
G Berti, CG Torres-Castanedo, DP Goronzy… - Applied Physics …, 2023 - pubs.aip.org
Niobium thin films are key components of superconducting microwave resonators. Interest in
these devices has increased dramatically because of their application in quantum systems …
these devices has increased dramatically because of their application in quantum systems …
Structure and Formation Mechanisms in Tantalum and Niobium Oxides in Superconducting Quantum Circuits
Improving the qubit's lifetime (T1) is crucial for fault-tolerant quantum computing. Recent
advancements have shown that replacing niobium (Nb) with tantalum (Ta) as the base metal …
advancements have shown that replacing niobium (Nb) with tantalum (Ta) as the base metal …
Oxygen vacancies in niobium pentoxide as a source of two-level system losses in superconducting niobium
We identify a major source of quantum decoherence in three-dimensional superconducting
radio-frequency (SRF) resonators and two-dimensional transmon qubits composed of …
radio-frequency (SRF) resonators and two-dimensional transmon qubits composed of …
Ultrathin Magnesium‐Based Coating as an Efficient Oxygen Barrier for Superconducting Circuit Materials
Scaling up superconducting quantum circuits based on transmon qubits necessitates
substantial enhancements in qubit coherence time. Over recent years, tantalum (Ta) has …
substantial enhancements in qubit coherence time. Over recent years, tantalum (Ta) has …
Quasiparticle Spectroscopy, Transport, and Magnetic Properties of Films Used in Superconducting Qubits
Niobium thin films on silicon substrate used in the fabrication of superconducting qubits
have been characterized using scanning and transmission electron microscopy, electrical …
have been characterized using scanning and transmission electron microscopy, electrical …